LIGO Document T1000175-v2

Thinner Compensation Plates for reduced Squeeze film damping

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Document type:
T - Technical notes
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A Technical review board, convened by M1000030, has recommended decreasing the thickness of the compensation plates. The understanding is that early adoption of this approach is considerably less expensive than a retrofit.
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Notes and Changes:
Corrected error in CP mass change (6 kg, not 3 kg).
Added some info on expected pressure levels.
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